Home / 25,530.98-35,218.37-15,319.37

Finding the Fourth Proportional to 25,530.98, 35,218.37 and 15,319.37

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Solution

The fourth proportional to 25,530.98, 35,218.37 and 15,319.37 is: 21,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,530.98 : 35,218.37 = 15,319.37 : x
  2. Step 2: Convert to fraction form
    25,530.98/35,218.37 = 15,319.37/x
  3. Step 3: Cross multiply
    25,530.98x = 35,218.37 × 15,319.37
  4. Step 4: Simplify right side
    25,530.98x = 539,523,367.17
  5. Step 5: Solve for x
    x = 539,523,367.17/25,530.98
  6. Step 6: Final answer
    x = 21,132.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.